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Old 09-08-2008, 07:44 PM   #1
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Adding two receptacles off of one


Hello,

I have not been able to find anything on what I would like to do. I currently have a 2 plug receptacle in my garage that runs the garage door opener. This wiring also controls the coach light on the front of the garage.

I want to jump off of the outlet and bring a run of wire across the ceiling to one end of the garage. I then plan to add two runs from there with one going left and one going right so I can add a receptacle to each side of the garage.

My question is how is the RIGHT way to do this? Can I pigtail off the first run and basically creat a split into two? Can this even be done?

Or do I need to run the wires all the way to one of the new receptacles from the ceiling receptacle and then run another from that one all the way back across the room and terminate at the other?

Thanks for any help you can provide. I included a picture just in case it will help. I also included the link to the pic in case it doesn't upload right here.

http://www.tranters.org/temp/wiring.jpg

Thanks again.
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Old 09-08-2008, 08:02 PM   #2
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Adding two receptacles off of one


You could easily do as shown in your second image as long as you install a junction box where the yellow circles are in your diagram, just as long as you're overdoing this circuit. Is the garage door opener and outdoor light the only things on this existing circuit? What are your plans for the new outlets? Any large appliances?

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Old 09-08-2008, 08:18 PM   #3
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Adding two receptacles off of one


Thanks for your response!

The plan is that one side will power my TV and small stereo.

The other side will power a wall light that plugs in and hangs on the wall.

Right now only the garage door opener is on that circuit. I was thinking the coach light as well but I just verified and only the opener. It has a 15AMP fuse with 15AMP receptacle.

I have 2 20AMP GFCI receptacles for shop-vac, air compressor, etc, and just outside the garage door another GFCI receptacle outside.

Maybe occasionally I would run a blender lol.

Also, does it have to be a junction box? I am using the rail type system that attaches to the wall to run the wiring and I have a T-bracket to join the split together. I had planned on using the newer flat style 3 port "push-in" wire connectors to create the 3 pig tails. So there would be 3 wire connectors 1 for each of the black, white, and ground wires. They would fit perfectly under this T-bracket.

Thanks again for your time!
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Old 09-10-2008, 07:40 AM   #4
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Adding two receptacles off of one


Can anyone else clarify more?

Thanks.
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Old 09-10-2008, 09:35 AM   #5
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Adding two receptacles off of one


By "rail type system" I assume you mean Wiremold? To make a splice, you need to have a junction box. There is not enough physical volume in a Wiremold "T" to house a junction. What you would do is use a Wiremold box as your "T", branching off to the two separate runs. If this is a 15A circuit, you would use 14ga THHN wire to make the runs.
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Old 09-10-2008, 11:49 AM   #6
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Adding two receptacles off of one


You could always go back to your first diagram drawing. It will consume more wiring and rail system that you speak of but should have no "splices" along the way. Connections would only be made in the outlet receptacle.

Do you not have access in the garage attic?
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Old 09-10-2008, 12:25 PM   #7
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Adding two receptacles off of one


Correct me if I am wrong, but I thought garage recepticals needed to be 20 amp and GFCI protected (with exceptions for the ones on the ceiling and for dedicated appliances like refridgerators)
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Old 09-10-2008, 01:14 PM   #8
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Adding two receptacles off of one


GFCI protected yes, 20A no. At least in the USA, the only required 20A circuits are the small appliance (kitchen), bathroom, and laundry receptacles.

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